BESC 3010 Ch. 11 Questions and
Answers | Latest Update | 2024/2025 |
100% Pass
How does an outlier affect the mean of a dataset?
A) It has no effect on the mean
B) It can significantly skew the mean higher or lower
C) It always increases the mean
D) It makes the mean more accurate
B) It...
B) It can significantly skew the mean higher or lower
C) It always increases the mean
D) It makes the mean more accurate
✔✔B) It can significantly skew the mean higher or lower
What does it mean if the p-value is greater than 0.05 in hypothesis testing?
A) There is significant evidence to reject the null hypothesis
B) There is not enough evidence to reject the null hypothesis
C) The results are guaranteed to be significant
D) The hypothesis test is invalid
✔✔B) There is not enough evidence to reject the null hypothesis
1
,What does a histogram represent?
A) The relationship between two variables
B) The distribution of a single quantitative variable
C) The frequency of categorical data
D) The average of a dataset
✔✔B) The distribution of a single quantitative variable
What is the purpose of conducting a chi-square test?
A) To determine the relationship between two continuous variables
B) To test the association between two categorical variables
C) To find the mean of a dataset
D) To compare the means of two groups
✔✔B) To test the association between two categorical variables
What is the significance of the central limit theorem in statistics?
A) It states that all data is normally distributed
B) It describes how sample means will be normally distributed regardless of the population
distribution
2
, C) It ensures that larger samples have more variability
D) It only applies to small sample sizes
✔✔B) It describes how sample means will be normally distributed regardless of the population
distribution
What does a skewed distribution indicate?
A) The data is evenly distributed
B) The data has more values on one side of the mean than the other
C) The mean, median, and mode are identical
D) The data is random
✔✔B) The data has more values on one side of the mean than the other
How does the mode differ from the mean in a dataset?
A) The mode is always greater than the mean
B) The mode is the most frequently occurring value, while the mean is the average
C) The mode applies only to numerical data
D) The mode cannot be determined from the data
✔✔B) The mode is the most frequently occurring value, while the mean is the average
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